1. http://www.sfu.ca/~decaste/newlondon.htm
2. http://www.wordslingingwoman.com/202fall08/schryer.pdf
3. http://courses.christopherylam.com/5191/readings/albers_2005.pdf
– annotation: https://via.hypothes.is/http://courses.christopherylam.com/5191/readings/albers_2005.pdf
4. http://www.users.miamioh.edu/simmonwm/Sullivan_usability.pdf